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B/wds/wds The Washington Visual Double Star Catalog (Mason+ 2001-2020)
The Washington Double Star Catalog (main part) (154448 rows)
  recno=104179
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ColumnValue  Explain   (UCD)
_RAJ200017 55 08.1500 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000-20 35 04.100 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195017 52 09.2982 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950-20 34 36.567 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon008.2804130 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat +2.4248087 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)
104179recno 104179  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

WDS17552-2035  (i) WDS name (based on J2000 position) (meta.id;meta.main)
DiscDON 869  Discoverer Code (1 to 4 letters) and Number (Note 5)   (meta.id)
Comp   Components when more than 2 (Note 1)   (meta.code.multip)
Obs11931 yr Date of first satisfactory observation (time.epoch)
Obs21940 yr Date of last satisfactory observation (time.epoch)
Nobs 3  Number of Observations (up to 9999) (meta.number)
pa1124 deg Position Angle at date Obs1 (Note 2)   (pos.posAng)
pa2127 deg Position Angle at date Obs2 (Note 2)   (pos.posAng)
sep1 0.6 arcsec Separation at date Obs1 (pos.angDistance;src.orbital)
sep2 0.60 arcsec Separation at date Obs12 (pos.angDistance;src.orbital)
mag111.400 mag Magnitude of First Component (phot.mag;em.opt)
mag212.00 mag Magnitude of Second Component (phot.mag;em.opt)
SpType   Spectral Type (Primary/Secondary) (src.spType)
pmRA1 -3 mas/yr Primary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE1 5 mas/yr Primary Proper Motion (Dec) (pos.pm;pos.eq.dec)
pmRA2  mas/yr Secondary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE2  mas/yr Secondary Proper Motion (Dec) (pos.pm;pos.eq.dec)
DM-20 4910  Durchmusterung Number (Note 3)   (meta.id)
Notes    [B-Z ] Notes about the binary (Note 4)   (meta.note)
n_RAJ2000    [!P] indicates a position derived from WDS name (meta.note)
RAJ200017 55 08.15 "h:m:s" (i) Right Ascension J2000 (Ep=J2000, hours) (pos.eq.ra;meta.main)
DEJ2000-20 35 04.1 "d:m:s" (i) Declination J2000 (Ep=J2000, degrees) (pos.eq.dec;meta.main)
  
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